package main

import "fmt"

type str struct {
	Id int
}

func main() {
	var a = 1
	switch a {
	case 1:
		fmt.Println(1)
	case 2:
		fmt.Println(2)
	case 3:
		fmt.Println(3)
	case 4:
		fmt.Println(4)
	}
}

func set(l *str) {
	l.Id = 2
}
